sign test


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sign test

a nonparametric statistical test based on the comparison of the signs of the differences between paired values.
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5) was tested by two-tailed Sign Tests (assuming a binomial distribution; Hollander and Wolfe 1973).
Statistically, paired t-test and Wilcoxon sign test are used to test the difference between Dmin and DRUC [12].
0(4-13) *** Total score 133(61-207) *** Balance exercises 42(9-62) *** Stretching exercises 21(3-28) *** Strengthening exercise 14(7-21) *** Total score 78(23-102) *** *** Significant improvement by Wilcoxon sign test at P [less than or equal to] 0.
The specification and power of the sign test in event study hypothesis tests using daily stock returns.
A generalized sign test shows that the proportion of positive CARs is significantly greater than chance over the interval days 0 to +1 (p < .
The statistical tools like kruskal-Wallis, MCNCMER test and sign Test, Chi- square have been used in the analysis of the study.
To test the central tendency of the distributions the medians for each group are tested with a binomial sign test.
None of daily abnormal returns are statistically significant from day 2 after the announcement of restatements in terms of the standardized cross-sectional (SCS) test (t-statistic) and the generalized sign test (Z-statistic).
Differences between electronic and paper scores were compared using raw scores and paired Student's t-tests; results were verified with the Sign test (Table 3).
In Table 2 we report a win-loss record of 95-108 in this later era, although a sign test fails to reject the null hypothesis of a 50-50 split or better.
To pass this test, they needed to achieve 25/30 for the Sign Test as well as passing the Road Test.
Moreover, the sign test is a time-honored, conservative tool.